From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 76290C3F6B0 for ; Thu, 18 Aug 2022 02:32:18 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236509AbiHRCcR (ORCPT ); Wed, 17 Aug 2022 22:32:17 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59424 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233588AbiHRCcQ (ORCPT ); Wed, 17 Aug 2022 22:32:16 -0400 Received: from new4-smtp.messagingengine.com (new4-smtp.messagingengine.com [66.111.4.230]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 81E1758085; Wed, 17 Aug 2022 19:32:15 -0700 (PDT) Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailnew.nyi.internal (Postfix) with ESMTP id C72B15809F1; Wed, 17 Aug 2022 22:32:14 -0400 (EDT) Received: from imap50 ([10.202.2.100]) by compute3.internal (MEProxy); Wed, 17 Aug 2022 22:32:14 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= colorremedies.com; h=cc:cc:content-type:date:date:from:from :in-reply-to:in-reply-to:message-id:mime-version:references :reply-to:sender:subject:subject:to:to; s=fm1; t=1660789934; x= 1660793534; bh=Dg3lZIUBn8ktbKE2tjHQauC07j8CEBmMwKDQfaoiWGo=; b=w LOFrKFri4BUQ3b7AR5n36w9aw3yzWBnGKS51gkKgYdYUC5ZFD4pfU//TUgfDfKUd MJeG9qPO/43xOU/QDtSRscMZtopaGyxD7Ms7pEWHSur6yrEqA/3Uv/bj4SdPW7Po GGPcxsTD8h+enKHaR3u9D4YrqlR2Vsuxh6eSC+IWWM9QIjD6b5hlsxgm4rrp+FnK AZGHR2Ac7wfDlkHkHvkS3q7Y6t9zA80uqNJuUa5m0I5cjCSN5foeYIiqlXFDSgp5 iYE8nbNsmxALWYyWIQr1+nDXvy52LRt9B3HxEzJ1J9Xf8aBvKpkCzJF2YQhs+z94 OVnMVga4J/9wInCAyQiyg== DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=cc:cc:content-type:date:date:feedback-id :feedback-id:from:from:in-reply-to:in-reply-to:message-id :mime-version:references:reply-to:sender:subject:subject:to:to :x-me-proxy:x-me-proxy:x-me-sender:x-me-sender:x-sasl-enc; s= fm1; t=1660789934; x=1660793534; bh=Dg3lZIUBn8ktbKE2tjHQauC07j8C EBmMwKDQfaoiWGo=; b=qvQmIIwTNsdAQNov9+uqL5k2CdiUgbUqpg1PY5v1FBRj 8hcWJa3lswiXU/s3TBsFHH1/fHoHPMOGbeSwKo/giHqFYfvu5XBukxyJFU/+7dFP uBmtA+HtT0GEabsrCj/rmbIGoE7FDLKT3UIdRsniX1ag2jq9Vp6ZAiZYwdNk6EAd 1rWHG0I3OXqLkhF+d8EP0Tkf+OXUImRrzQNhWHmgrUmCstyup0dHJPPJKNuUlMiE cTNaTXgcW1XRgejzJvl/6dFzUOffcC0AY5pT1NtR1JDdIFuZkCAwTnpv3z0F5W1W txPZikRKc2HwN2UPlFsuSHiRg/WmN3ktrEpuKsryiw== X-ME-Sender: X-ME-Proxy-Cause: gggruggvucftvghtrhhoucdtuddrgedvfedrvdehjedgieduucetufdoteggodetrfdotf fvucfrrhhofhhilhgvmecuhfgrshhtofgrihhlpdfqfgfvpdfurfetoffkrfgpnffqhgen uceurghilhhouhhtmecufedttdenucesvcftvggtihhpihgvnhhtshculddquddttddmne cujfgurhepofgfggfkjghffffhvfevufgtsehttdertderredtnecuhfhrohhmpedfvehh rhhishcuofhurhhphhihfdcuoehlihhsthhssegtohhlohhrrhgvmhgvughivghsrdgtoh hmqeenucggtffrrghtthgvrhhnpefgvdeukedtfefgfefgtdelffdvieeltefgfedutdff leeuieevieevkeehtdehueenucevlhhushhtvghrufhiiigvpedtnecurfgrrhgrmhepmh grihhlfhhrohhmpehlihhsthhssegtohhlohhrrhgvmhgvughivghsrdgtohhm X-ME-Proxy: Feedback-ID: i06494636:Fastmail Received: by mailuser.nyi.internal (Postfix, from userid 501) id 6AE601700082; Wed, 17 Aug 2022 22:32:14 -0400 (EDT) X-Mailer: MessagingEngine.com Webmail Interface User-Agent: Cyrus-JMAP/3.7.0-alpha0-841-g7899e99a45-fm-20220811.002-g7899e99a Mime-Version: 1.0 Message-Id: In-Reply-To: <2f252399-0e30-4465-8c02-3f42c145174a@www.fastmail.com> References: <2b8a38fa-f15f-45e8-8caa-61c5f8cd52de@www.fastmail.com> <7c830487-95a6-b008-920b-8bc4a318f10a@applied-asynchrony.com> <20220817114933.66c4g4xjsi4df2tg@quack3> <85a141ae-56a7-4dcd-b75a-04be4b276b3a@www.fastmail.com> <20220817163059.kigrvdfmxfswmhls@quack3> <51cd43f9-ab6b-4dd6-814f-e0c1ace3143c@www.fastmail.com> <20220817181554.znqljc6mmci45ukd@quack3> <20220817183335.47a4ao26wjopavo2@quack3> <2f252399-0e30-4465-8c02-3f42c145174a@www.fastmail.com> Date: Wed, 17 Aug 2022 22:31:54 -0400 From: "Chris Murphy" To: "Jan Kara" Cc: =?UTF-8?Q?Holger_Hoffst=C3=A4tte?= , "Nikolay Borisov" , "Jens Axboe" , "Paolo Valente" , Linux-RAID , linux-block , linux-kernel , "Josef Bacik" Subject: Re: stalling IO regression since linux 5.12, through 5.18 Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: linux-block@vger.kernel.org On Wed, Aug 17, 2022, at 2:54 PM, Chris Murphy wrote: > On Wed, Aug 17, 2022, at 2:33 PM, Jan Kara wrote: >> On Wed 17-08-22 14:18:01, Chris Murphy wrote: >>> >>> >>> On Wed, Aug 17, 2022, at 2:15 PM, Jan Kara wrote: >>> >>> > OK, if this indeed passes then b6e68ee82585 ("blk-mq: Improve performance >>> > of non-mq IO schedulers with multiple HW queues") might be what's causing >>> > issues (although I don't know how yet...). >>> >>> I can revert it from 5.12.0 and try. Let me know which next test is preferred :) >> >> Let's try to revert this first so that we have it narrowed down what >> started causing the issues. > > OK I've reverted b6e68ee82585, and removing > megaraid_sas.host_tagset_enable=0, and will restart the workload... I ran this for 7 hours and the problem didn't happen. -- Chris Murphy